/* 首页样式 */
/* 版心 */
.wrapper {
  margin: 0 auto;
  width: 1200px;
}

body {
  background-color: #f3f5f7;
}

/* 头部样式 */
.header {
  display: flex;
  padding: 29px 0 30px;
  background-color: #fff;
  height: 100px;
}

.header .wrapper {
  display: flex;
}

/* 头部 --- logo样式 */
.header .wrapper .logo a {
  display: block;
  width: 195px;
  height: 41px;
  background-image: url(../images/logo.png);
  margin-right: 102px;
  font-size: 0;
}

/* 头部 --- 导航样式 */
.header .wrapper .nav {
  /* width: 346px; */
  line-height: 27px;
  /* background-color: pink; */
}

.nav ul {
  display: flex;
}

.nav li {
  margin-right: 24px;
  /* background-color: orange; */
}

.nav li a {
  display: block;
  padding: 6px 8px;
  line-height: 27px;
  font-size: 19px;
}

.nav li .active,
.nav li a:hover {
  border-bottom: 2px solid #00a4ff;
}

/* 头部 --- 搜索框样式 */
.header .wrapper .search {
  display: flex;
  width: 412px;
  height: 40px;
  background-color: #f3f5f7;
  border-radius: 20px;
  margin-right: 32px;
  margin-left: 64px;
  padding-left: 19px;
  padding-right: 12px;
}

.search input {
  height: 40px;
  flex: 1;
}

/* ::placeholder选中的是placeholder属性文字样式 */
.search input::placeholder {
  font-size: 14px;
  color: #999;
}

/* 父级是flex布局，子级变弹性盒子，加宽高生效 */
.search a {
  width: 16px;
  height: 16px;
  align-self: center;
  background-image: url(../images/search.png);
}

/* 用户区域CSS */
.user {
  /* width: 116px; */
  height: 30px;
  margin-top: 4px;
  /* background-color: pink; */
}

.user img {
  vertical-align: middle;
  margin-right: 7px;
}

.user span {
  font-size: 16px;
  color: #666;
}

/* banner区域CSS */
.banner {
  height: 420px;
  background-color: #0092cb;
}

.banner .wrapper {
  display: flex;
  height: 420px;
  justify-content: space-between;
  background-image: url(../uploads/banner.png);
}

.banner .left {
  width: 191px;
  height: 420px;
  padding: 3px 20px;
  background-color: rgba(0, 0, 0, 0.42);
}

/* .left li {} */

.left li a {
  display: block;
  color: #fff;
  font-size: 16px;
  height: 46px;
  background: url(../images/right.png) no-repeat right;
  line-height: 46px;
}

.left li a:hover {
  color: #00a4ff;
  background: url(../images/right-hover.png) no-repeat right;
}

.banner .right {
  width: 218px;
  height: 305px;
  background-color: #209dd5;
  border-radius: 10px;
  margin-top: 60px;
}

.banner .right h3 {
  color: #fff;
  font-weight: normal;
  font-size: 15px;
  line-height: 20px;
  margin: 18px 0 9px 14px;
}

.banner .content {
  height: 257px;
  background-color: #fff;
  border-radius: 10px;
  padding: 14px;
}

.banner .content dl {
  border-bottom: 1px solid #e0e0e0;
  margin-bottom: 12px;
}

.banner .content dl dt {
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 600;
  line-height: 20px;
}

.content dl dd {
  margin-bottom: 8px;
  font-size: 12px;
  line-height: 16px;
}

.content .span1 {
  color: #00a4ff;
}

.content .span2 {
  color: #7d7d7d;
}

.right button {
  width: 100%;
  height: 30px;
  background-color: #00a4ff;
  color: #fff;
  font-size: 14px;
  border: 0px solid #000;
  border-radius: 15px;
}

.recommend .wrapper {
  height: 60px;
  display: flex;
  background-color: #fff;
  margin-top: 12px;
  margin-bottom: 15px;
  padding: 18px 20px;
  box-shadow: 0px 1px 2px 0px rgba(211, 211, 211, 0.5);
}

.recommend .wrapper h3 {
  font-size: 18px;
  line-height: 25px;
  color: #00a4ff;
  font-weight: normal;
  margin-right: 20px;
}

.recommend .wrapper ul {
  display: flex;
  flex: 1;
}

.recommend .wrapper li a {
  font-size: 18px;
  line-height: 25px;
  padding: 0 24px;
  border-right: 1px #e0e0e0 solid;
}

/* 将最后一个标签的右边框线删掉 */
.recommend .wrapper li:last-child a {
  border: 0;
}

.recommend .wrapper .modify {
  font-size: 16px;
  line-height: 22px;
  color: #00a4ff;
}

.course {
  height: 600px;
}

/* 标题 - 公共类 - 与其他区域共用 */
.title {
  display: flex;
  line-height: 60px;
  justify-content: space-between;
}

.title h3 {
  font-weight: normal;
  font-size: 21px;
  line-height: 60px;
}

.title .more {
  font-size: 14px;
  color: #999;
  padding-right: 20px;
  background: url(../images/more.png) no-repeat right center;
}

.detail {
  height: 556px;
  /* background-color: pink; */
}

.detail ul {
  height: 556px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-content: space-between;
}

.detail li {
  width: 228px;
  height: 271px;
  background-color: #fff;
}

.detail li div {
  padding-right: 20px;
  padding-left: 20px;
}

.detail li .name {
  font-size: 14px;
  /* background-color: yellow; */
  height: 37px;
  margin-top: 20px;
  margin-bottom: 16px;
}

.desc {
  font-size: 14px;
  line-height: 20px;
}

.desc .label {
  color: #fa6400;
}

.desc .num {
  color: #999;
}

.front_end {
  margin-top: 32px;
  height: 431px;
}

.front_end .body {
  display: flex;
}


.front_end .left {
  width: 228px;
  height: 386px;
  margin-right: 15px;
}

.front_end .right .top {
  margin-bottom: 10px;
}

/* 
.front_end .title {
  margin-bottom: 15px;
} */

.title ul {
  display: flex;
  width: 308px;
  justify-content: space-between;
}

.title ul a {
  font-size: 16px;
  line-height: 32px;
}

.ai {
  height: 316px;
  margin-top: 32px;
}

/* 版权区域CSS */
.footer {
  margin-top: 60px;
  padding-top: 60px;
  height: 273px;
  background-color: #fff;
}

.footer .wrapper {
  display: flex;
  justify-content: space-between;
}

.footer .left {
  width: 432px;
  height: 148px;
  /* background-color: pink; */
}

.footer .logo {
  margin-bottom: -5px;
}

.footer .left .text {
  font-size: 12px;
  height: 33px;
  color: #666;
  margin-top: 24px;
  margin-bottom: 14px;
  line-height: 17px;
}

.footer .left .download {
  width: 120px;
  height: 36px;
  padding: 7px 29px;
  color: #00a4ff;
  border: solid 1px #00a4ff;
}

.footer .right {
  display: flex;
  justify-content: space-between;
  width: 516px;
  height: 151px;
  /* background-color: pink; */
}

.footer .right dl dt {
  font-size: 16px;
  line-height: 23px;
  margin-bottom: 12px;
}

.footer .right dl dd {
  font-size: 14px;
  line-height: 24px;
  color: #666;
}